:root {
  --bg: #0a0e17;
  --card: #111827;
  --card2: #1a2232;
  --border: #1f2937;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --muted2: #64748b;
  --bee: #fbbf24;
  --bee2: #f59e0b;
  --bee-glow: rgba(251, 191, 36, 0.35);
  --blue: #3b82f6;
  --green: #22c55e;
  --purple: #a855f7;
  --red: #ef4444;
}
*,*::before,*::after { box-sizing: border-box; }
html,body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans JP", "Noto Sans KR", Roboto, "Helvetica Neue", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
code, pre {
  font-family: "JetBrains Mono", "SF Mono", Consolas, "Liberation Mono", monospace;
  font-size: 0.92em;
}
a {
  color: var(--bee);
  text-decoration: none;
  transition: color 0.15s;
}
a:hover { color: var(--bee2); text-decoration: underline; }
h1, h2, h3 { color: #fff; font-weight: 700; letter-spacing: -0.02em; }

/* ====== Hex background pattern ====== */
.hex-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 70% 50% at 50% 0%, rgba(251,191,36,0.10), transparent 70%),
    radial-gradient(ellipse 60% 40% at 80% 100%, rgba(168,85,247,0.06), transparent 70%),
    radial-gradient(ellipse 60% 40% at 20% 100%, rgba(59,130,246,0.06), transparent 70%),
    var(--bg);
  overflow: hidden;
}
.hex-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(30deg, transparent 48%, rgba(251,191,36,0.04) 48.5%, rgba(251,191,36,0.04) 51.5%, transparent 52%),
    linear-gradient(-30deg, transparent 48%, rgba(251,191,36,0.04) 48.5%, rgba(251,191,36,0.04) 51.5%, transparent 52%),
    linear-gradient(90deg, transparent 48%, rgba(251,191,36,0.04) 48.5%, rgba(251,191,36,0.04) 51.5%, transparent 52%);
  background-size: 52px 90px;
  mask: radial-gradient(ellipse 80% 60% at 50% 40%, black, transparent 100%);
}

/* ====== Layout ====== */
.shell {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}
nav.top {
  display: flex;
  align-items: center;
  padding: 22px 0;
  font-size: 14px;
  gap: 28px;
}
nav.top .brand {
  font-weight: 700;
  color: #fff;
  font-size: 18px;
}
nav.top .brand .bee { font-size: 22px; margin-right: 6px; vertical-align: -2px; }
nav.top .links {
  margin-left: auto;
  display: flex;
  gap: 24px;
  align-items: center;
}
nav.top .links a {
  color: var(--muted);
}
nav.top .links a:hover { color: var(--bee); text-decoration: none; }
nav.top .gh {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 14px;
  color: var(--text);
  font-weight: 500;
}
nav.top .gh:hover { border-color: var(--bee); color: var(--bee); }

/* ====== Language switcher (pure CSS, uses <details>) ====== */
.lang {
  position: relative;
}
.lang summary {
  list-style: none;
  cursor: pointer;
  padding: 7px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--muted);
  font-size: 14px;
  user-select: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: border-color 0.15s, color 0.15s;
}
.lang summary:hover { border-color: var(--bee); color: var(--bee); }
.lang summary::-webkit-details-marker { display: none; }
.lang summary::after {
  content: "▾";
  font-size: 10px;
  opacity: 0.6;
  margin-left: 2px;
}
.lang[open] summary { border-color: var(--bee); color: var(--bee); }
.lang ul {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 180px;
  margin: 0;
  padding: 6px;
  list-style: none;
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.5);
  z-index: 10;
}
.lang ul a {
  display: block;
  padding: 8px 12px;
  border-radius: 6px;
  color: var(--text);
  font-size: 14px;
}
.lang ul a:hover { background: rgba(251,191,36,0.1); color: var(--bee); text-decoration: none; }
.lang ul a.current { color: var(--bee); background: rgba(251,191,36,0.08); }
.lang ul a .native { color: var(--muted2); font-size: 12px; margin-left: 6px; }

/* ====== Hero ====== */
.hero {
  padding: 80px 0 60px;
  text-align: center;
}
.hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid rgba(251,191,36,0.3);
  background: rgba(251,191,36,0.08);
  border-radius: 999px;
  font-size: 13px;
  color: var(--bee);
  margin-bottom: 28px;
}
.hero .eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 10px var(--green);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.hero h1 {
  font-size: clamp(36px, 6vw, 64px);
  line-height: 1.1;
  margin: 0 0 18px;
  letter-spacing: -0.03em;
}
.hero h1 .swarm {
  background: linear-gradient(90deg, var(--bee) 0%, var(--bee2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero .tagline {
  font-size: 19px;
  color: var(--muted);
  max-width: 680px;
  margin: 0 auto 36px;
}
.hero .cta-row {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 22px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  transition: transform 0.1s, box-shadow 0.15s, background 0.15s;
  border: 1px solid transparent;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--bee) 0%, var(--bee2) 100%);
  color: #1a1200;
  box-shadow: 0 6px 20px var(--bee-glow);
}
.btn-primary:hover {
  color: #1a1200;
  box-shadow: 0 8px 28px var(--bee-glow);
}
.btn-ghost {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-ghost:hover {
  border-color: var(--bee);
  color: var(--bee);
}
.hero .sub-cta {
  font-size: 13px;
  color: var(--muted2);
}
.hero .sub-cta code {
  padding: 3px 8px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--bee);
}

/* ====== Stats strip ====== */
.stats {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  padding: 28px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stats .s {
  text-align: center;
}
.stats .s .n {
  font-size: 28px;
  font-weight: 700;
  color: var(--bee);
  font-family: "JetBrains Mono", monospace;
}
.stats .s .l {
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 2px;
}
@media (max-width: 640px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
}

/* ====== Sections ====== */
section { padding: 64px 0; }
section.narrow { padding: 48px 0; }
.sec-title {
  font-size: 28px;
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}
.sec-sub {
  color: var(--muted);
  font-size: 15px;
  margin: 0 0 32px;
  max-width: 720px;
}

/* ====== Quick install ====== */
.install {
  background: linear-gradient(180deg, var(--card) 0%, var(--card2) 100%);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
}
.install h3 {
  margin: 0 0 14px;
  color: var(--bee);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 12px;
}
.install pre {
  background: #05070c;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 18px 20px;
  margin: 0;
  overflow-x: auto;
  color: #d1d5db;
  font-size: 13.5px;
  line-height: 1.8;
}
.install pre .comment { color: var(--muted2); }
.install pre .cmd { color: var(--bee); }
.install pre .arg { color: #93c5fd; }
.install pre .str { color: #86efac; }

/* ====== Two-column split: In / Not In ====== */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}
@media (max-width: 820px) {
  .split { grid-template-columns: 1fr; }
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
}
.card.in {
  border-color: rgba(34,197,94,0.25);
  background: linear-gradient(180deg, rgba(34,197,94,0.04) 0%, var(--card) 30%);
}
.card.notin {
  border-color: rgba(148,163,184,0.2);
}
.card h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 8px;
  font-size: 18px;
  flex-wrap: wrap;
}
.card h3 .badge {
  font-size: 11px;
  padding: 3px 9px;
  border-radius: 5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.card.in h3 .badge {
  background: rgba(34,197,94,0.15);
  color: #86efac;
  border: 1px solid rgba(34,197,94,0.3);
}
.card.notin h3 .badge {
  background: rgba(148,163,184,0.12);
  color: var(--muted);
  border: 1px solid rgba(148,163,184,0.2);
}
.card .lead { color: var(--muted); font-size: 14px; margin: 0 0 18px; }
.card ul { margin: 0; padding: 0; list-style: none; }
.card li {
  position: relative;
  padding: 9px 0 9px 28px;
  font-size: 14.5px;
  line-height: 1.5;
  border-bottom: 1px dashed rgba(255,255,255,0.04);
}
.card li:last-child { border-bottom: 0; }
.card li::before {
  position: absolute;
  left: 2px;
  top: 10px;
  font-size: 14px;
  line-height: 1;
}
.card.in li::before { content: "✓"; color: var(--green); font-weight: 700; }
.card.notin li::before { content: "✗"; color: var(--muted2); }
.card li code {
  padding: 1px 6px;
  background: rgba(251,191,36,0.08);
  border-radius: 4px;
  color: var(--bee);
  font-size: 12.5px;
}
.card li b { color: #fff; }
.card .kicker {
  margin-top: 22px;
  padding: 14px 16px;
  background: rgba(255,255,255,0.02);
  border-left: 3px solid var(--bee);
  border-radius: 4px;
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.55;
}
.card .kicker b { color: var(--text); }

/* ====== Feature grid ====== */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
@media (max-width: 820px) { .features { grid-template-columns: 1fr; } }
.feat {
  padding: 22px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: border-color 0.15s, transform 0.15s;
}
.feat:hover {
  border-color: rgba(251,191,36,0.3);
  transform: translateY(-2px);
}
.feat .icon {
  font-size: 26px;
  margin-bottom: 10px;
}
.feat h4 {
  margin: 0 0 6px;
  font-size: 16px;
  color: #fff;
}
.feat p {
  margin: 0;
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.55;
}

/* ====== Footer ====== */
footer {
  border-top: 1px solid var(--border);
  padding: 36px 0 48px;
  color: var(--muted2);
  font-size: 13px;
  text-align: center;
}
footer .row {
  display: flex;
  justify-content: center;
  gap: 22px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
footer .row a { color: var(--muted); }
footer .row a:hover { color: var(--bee); text-decoration: none; }
footer .fine { color: var(--muted2); font-size: 12px; }
footer .fine code { color: var(--muted); }

/* ====== Responsive nav ====== */
@media (max-width: 640px) {
  nav.top { flex-wrap: wrap; gap: 14px; }
  nav.top .links { gap: 16px; width: 100%; justify-content: flex-end; }
  nav.top .links a[href^="#"] { display: none; }
  .hero { padding: 48px 0 36px; }
  section { padding: 44px 0; }
}